Evaluation of the Validity of 3 Criteria for Sampling and Analyzing DST Wastes in Support of Waste Feed Delivery

Boger, R. M.

CH2M Hill Hanford Group, Inc.

关键词: Low-Level Radioactive Wastes;    Waste Retrieval;    Sampling;    Storage Facilities;    Glass;   

DOI  :  10.2172/805371
RP-ID  :  RPP-7170, Rev.0
RP-ID  :  AC27-99RL14047
RP-ID  :  805371

美国|英语

来源: UNT Digital Library

【 摘 要 】

This document summarizes the analysis of 3 basic criteria for the sampling systems that will provide waste validation samples of tank waste feeds prior to delivery to the waste treatment and immobilization plant where the wastes will be converted to glass forms. The assessed criteria includes sampling through a 4-inch riser, sampling while a mixer pump is operating, and the deployment of an at-tank analysis system. The assessment, based on the Phase I, 3S6 waste feed scenario, indicated that for high level waste, sampling through a 4-inch riser is not required but sampling while mixer pumps are operating will be required. For low activity waste, sampling through a 4-inch riser will be required but sampling while mixer pumps are operating is not required. The assessment indicated that an at-tank analysis system to provide tank mixing/settling (homogeneity) status is not needed since the number of tanks providing LAW feed was expanded and the payment basis in the original privatization contract has been modified.